- #1
johnqwertyful
- 397
- 14
Homework Statement
A particle is in the ground state of a pendulum of length ##L##. ##L## suddenly increases to ##4L##. Find the probability that the particle will be in the ground state of the new pendulum.
Homework Equations
The Attempt at a Solution
What's this question even asking? So the particle has energy ##E=\frac{1}{2} \hbar \omega##, where ##\omega=\sqrt{\frac{g}{L}}##, then ##E \rightarrow \frac{1}{2} E##. Isn't it still going to be in the ground state? I don't get what the problem is trying to ask.